package org.cbioportal.legacy.web;

import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.csrf;

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.ArrayList;
import java.util.List;
import org.cbioportal.legacy.model.CancerStudy;
import org.cbioportal.legacy.model.Patient;
import org.cbioportal.legacy.model.meta.BaseMeta;
import org.cbioportal.legacy.service.PatientService;
import org.cbioportal.legacy.service.exception.PatientNotFoundException;
import org.cbioportal.legacy.web.config.TestConfig;
import org.cbioportal.legacy.web.parameter.HeaderKeyConstants;
import org.cbioportal.legacy.web.parameter.PatientFilter;
import org.cbioportal.legacy.web.parameter.PatientIdentifier;
import org.hamcrest.Matchers;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mockito;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.http.MediaType;
import org.springframework.security.test.context.support.WithMockUser;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;

@RunWith(SpringJUnit4ClassRunner.class)
@WebMvcTest
@ContextConfiguration(classes = {PatientController.class, TestConfig.class})
public class PatientControllerTest {

  private static final int TEST_INTERNAL_ID_1 = 1;
  private static final String TEST_STABLE_ID_1 = "test_stable_id_1";
  private static final int TEST_CANCER_STUDY_ID_1 = 1;
  private static final String TEST_CANCER_STUDY_IDENTIFIER_1 = "test_study_1";
  private static final int TEST_INTERNAL_ID_2 = 2;
  private static final String TEST_STABLE_ID_2 = "test_stable_id_2";
  private static final int TEST_CANCER_STUDY_ID_2 = 2;
  private static final String TEST_CANCER_STUDY_IDENTIFIER_2 = "test_study_2";
  private static final String TEST_TYPE_OF_CANCER_ID_1 = "test_type_of_cancer_id_1";
  private static final String TEST_NAME_1 = "test_name_1";
  private static final String TEST_SHORT_NAME_1 = "test_short_name_1";
  private static final String TEST_DESCRIPTION_1 = "test_description_1";

  @MockBean private PatientService patientService;

  private ObjectMapper objectMapper = new ObjectMapper();

  @Autowired private MockMvc mockMvc;

  @Test
  @WithMockUser
  public void getAllPatientsDefaultProjection() throws Exception {

    List<Patient> patientList = createExamplePatients();

    Mockito.when(
            patientService.getAllPatients(
                Mockito.any(),
                Mockito.any(),
                Mockito.any(),
                Mockito.any(),
                Mockito.any(),
                Mockito.any()))
        .thenReturn(patientList);

    mockMvc
        .perform(MockMvcRequestBuilders.get("/api/patients").accept(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(
            MockMvcResultMatchers.content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.jsonPath("$", Matchers.hasSize(2)))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].patientId").value(TEST_STABLE_ID_1))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[0].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_1))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudy").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].patientId").value(TEST_STABLE_ID_2))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[1].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_2))
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudy").doesNotExist());
  }

  @Test
  @WithMockUser
  public void getAllPatientsMetaProjection() throws Exception {

    BaseMeta baseMeta = new BaseMeta();
    baseMeta.setTotalCount(2);

    Mockito.when(patientService.getMetaPatients(Mockito.any())).thenReturn(baseMeta);

    mockMvc
        .perform(MockMvcRequestBuilders.get("/api/patients").param("projection", "META"))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(MockMvcResultMatchers.header().string(HeaderKeyConstants.TOTAL_COUNT, "2"));
  }

  @Test
  @WithMockUser
  public void getAllPatientsInStudyDefaultProjection() throws Exception {

    List<Patient> patientList = createExamplePatients();

    Mockito.when(
            patientService.getAllPatientsInStudy(
                Mockito.any(),
                Mockito.any(),
                Mockito.any(),
                Mockito.any(),
                Mockito.any(),
                Mockito.any()))
        .thenReturn(patientList);

    mockMvc
        .perform(
            MockMvcRequestBuilders.get("/api/studies/test_study_id/patients")
                .accept(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(
            MockMvcResultMatchers.content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.jsonPath("$", Matchers.hasSize(2)))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].patientId").value(TEST_STABLE_ID_1))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[0].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_1))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudy").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].patientId").value(TEST_STABLE_ID_2))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[1].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_2))
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudy").doesNotExist());
  }

  @Test
  @WithMockUser
  public void getAllPatientsInStudyMetaProjection() throws Exception {

    BaseMeta baseMeta = new BaseMeta();
    baseMeta.setTotalCount(2);

    Mockito.when(patientService.getMetaPatientsInStudy(Mockito.anyString())).thenReturn(baseMeta);

    mockMvc
        .perform(
            MockMvcRequestBuilders.get("/api/studies/test_study_id/patients")
                .param("projection", "META"))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(MockMvcResultMatchers.header().string(HeaderKeyConstants.TOTAL_COUNT, "2"));
  }

  @Test
  @WithMockUser
  public void getPatientInStudyNotFound() throws Exception {

    Mockito.when(patientService.getPatientInStudy(Mockito.anyString(), Mockito.anyString()))
        .thenThrow(new PatientNotFoundException("test_study_id", "test_patient_id"));

    mockMvc
        .perform(
            MockMvcRequestBuilders.get("/api/studies/test_study_id/patients/test_patient_id")
                .accept(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.status().isNotFound())
        .andExpect(
            MockMvcResultMatchers.jsonPath("$.message")
                .value("Patient not found in study test_study_id: test_patient_id"));
  }

  @Test
  @WithMockUser
  public void getPatientInStudy() throws Exception {

    Patient patient = new Patient();
    patient.setInternalId(TEST_INTERNAL_ID_1);
    patient.setStableId(TEST_STABLE_ID_1);
    patient.setCancerStudyId(TEST_CANCER_STUDY_ID_1);
    patient.setCancerStudyIdentifier(TEST_CANCER_STUDY_IDENTIFIER_1);
    CancerStudy cancerStudy = new CancerStudy();
    cancerStudy.setCancerStudyId(TEST_CANCER_STUDY_ID_1);
    cancerStudy.setCancerStudyIdentifier(TEST_CANCER_STUDY_IDENTIFIER_1);
    cancerStudy.setTypeOfCancerId(TEST_TYPE_OF_CANCER_ID_1);
    cancerStudy.setName(TEST_NAME_1);
    cancerStudy.setDescription(TEST_DESCRIPTION_1);
    patient.setCancerStudy(cancerStudy);

    Mockito.when(patientService.getPatientInStudy(Mockito.anyString(), Mockito.anyString()))
        .thenReturn(patient);

    mockMvc
        .perform(
            MockMvcRequestBuilders.get("/api/studies/test_study_id/patients/test_patient_id")
                .accept(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(
            MockMvcResultMatchers.content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.jsonPath("$.internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$.patientId").value(TEST_STABLE_ID_1))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$.studyId").value(TEST_CANCER_STUDY_IDENTIFIER_1))
        .andExpect(MockMvcResultMatchers.jsonPath("$.cancerStudyIdentifier").doesNotExist());
  }

  @Test
  @WithMockUser
  public void fetchPatientsDefaultProjection() throws Exception {

    List<Patient> patientList = createExamplePatients();

    Mockito.when(
            patientService.fetchPatients(Mockito.anyList(), Mockito.anyList(), Mockito.anyString()))
        .thenReturn(patientList);

    PatientFilter patientFilter = new PatientFilter();
    List<PatientIdentifier> patientIdentifiers = new ArrayList<>();
    PatientIdentifier patientIdentifier1 = new PatientIdentifier();
    patientIdentifier1.setStudyId(TEST_CANCER_STUDY_IDENTIFIER_1);
    patientIdentifier1.setPatientId(TEST_STABLE_ID_1);
    patientIdentifiers.add(patientIdentifier1);
    PatientIdentifier patientIdentifier2 = new PatientIdentifier();
    patientIdentifier2.setStudyId(TEST_CANCER_STUDY_IDENTIFIER_2);
    patientIdentifier2.setPatientId(TEST_STABLE_ID_2);
    patientIdentifiers.add(patientIdentifier2);
    patientFilter.setPatientIdentifiers(patientIdentifiers);

    mockMvc
        .perform(
            MockMvcRequestBuilders.post("/api/patients/fetch")
                .with(csrf())
                .accept(MediaType.APPLICATION_JSON)
                .contentType(MediaType.APPLICATION_JSON)
                .content(objectMapper.writeValueAsString(patientFilter)))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(
            MockMvcResultMatchers.content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.jsonPath("$", Matchers.hasSize(2)))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].patientId").value(TEST_STABLE_ID_1))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[0].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_1))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudy").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].patientId").value(TEST_STABLE_ID_2))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[1].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_2))
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudy").doesNotExist());
  }

  @Test
  @WithMockUser
  public void fetchPatientsByUniquePatientKeysDefaultProjection() throws Exception {

    List<Patient> patientList = createExamplePatients();

    Mockito.when(
            patientService.fetchPatients(Mockito.anyList(), Mockito.anyList(), Mockito.anyString()))
        .thenReturn(patientList);

    PatientFilter patientFilter = new PatientFilter();
    List<String> uniquePatientKeys = new ArrayList<>();
    uniquePatientKeys.add("dGVzdF9zdGFibGVfaWRfMTp0ZXN0X3N0dWR5XzE");
    uniquePatientKeys.add("dGVzdF9zdGFibGVfaWRfMjp0ZXN0X3N0dWR5XzI");
    patientFilter.setUniquePatientKeys(uniquePatientKeys);

    mockMvc
        .perform(
            MockMvcRequestBuilders.post("/api/patients/fetch")
                .with(csrf())
                .accept(MediaType.APPLICATION_JSON)
                .contentType(MediaType.APPLICATION_JSON)
                .content(objectMapper.writeValueAsString(patientFilter)))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(
            MockMvcResultMatchers.content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
        .andExpect(MockMvcResultMatchers.jsonPath("$", Matchers.hasSize(2)))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].patientId").value(TEST_STABLE_ID_1))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[0].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_1))
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[0].cancerStudy").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].internalId").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].patientId").value(TEST_STABLE_ID_2))
        .andExpect(
            MockMvcResultMatchers.jsonPath("$[1].studyId").value(TEST_CANCER_STUDY_IDENTIFIER_2))
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudyIdentifier").doesNotExist())
        .andExpect(MockMvcResultMatchers.jsonPath("$[1].cancerStudy").doesNotExist());
  }

  @Test
  @WithMockUser
  public void fetchPatientsMetaProjection() throws Exception {

    BaseMeta baseMeta = new BaseMeta();
    baseMeta.setTotalCount(2);

    Mockito.when(patientService.fetchMetaPatients(Mockito.anyList(), Mockito.anyList()))
        .thenReturn(baseMeta);

    PatientFilter patientFilter = new PatientFilter();
    List<PatientIdentifier> patientIdentifiers = new ArrayList<>();
    PatientIdentifier patientIdentifier1 = new PatientIdentifier();
    patientIdentifier1.setStudyId(TEST_CANCER_STUDY_IDENTIFIER_1);
    patientIdentifier1.setPatientId(TEST_STABLE_ID_1);
    patientIdentifiers.add(patientIdentifier1);
    PatientIdentifier patientIdentifier2 = new PatientIdentifier();
    patientIdentifier2.setStudyId(TEST_CANCER_STUDY_IDENTIFIER_1);
    patientIdentifier2.setPatientId(TEST_STABLE_ID_2);
    patientIdentifiers.add(patientIdentifier2);
    patientFilter.setPatientIdentifiers(patientIdentifiers);

    mockMvc
        .perform(
            MockMvcRequestBuilders.post("/api/patients/fetch")
                .with(csrf())
                .param("projection", "META")
                .contentType(MediaType.APPLICATION_JSON)
                .content(objectMapper.writeValueAsString(patientFilter)))
        .andExpect(MockMvcResultMatchers.status().isOk())
        .andExpect(MockMvcResultMatchers.header().string(HeaderKeyConstants.TOTAL_COUNT, "2"));
  }

  private List<Patient> createExamplePatients() {

    List<Patient> patientList = new ArrayList<>();
    Patient patient1 = new Patient();
    patient1.setInternalId(TEST_INTERNAL_ID_1);
    patient1.setStableId(TEST_STABLE_ID_1);
    patient1.setCancerStudyId(TEST_CANCER_STUDY_ID_1);
    patient1.setCancerStudyIdentifier(TEST_CANCER_STUDY_IDENTIFIER_1);
    patientList.add(patient1);
    Patient patient2 = new Patient();
    patient2.setInternalId(TEST_INTERNAL_ID_2);
    patient2.setStableId(TEST_STABLE_ID_2);
    patient2.setCancerStudyId(TEST_CANCER_STUDY_ID_2);
    patient2.setCancerStudyIdentifier(TEST_CANCER_STUDY_IDENTIFIER_2);
    patientList.add(patient2);
    return patientList;
  }
}
